Sound reproducing and recording instrument.



H. G. WIEDER. sown REPRGDUGING AND n'zcoznme INSTRUMENT.

APPLICATION FILED AUG. 21. 1909. 1,01 3 ,247. Patented J an. 2, 1912.

iSEBETS-SHEBT l H. G. WIBDBR.

SOUND REPRODUGING AND RECORDING INSTRUMENT.

APPLICATION FILED mam. 1909.

1,013,247. V Pa n ed Jan. 2,1212.

if W

H. G. WIEDERQ SOUND REPRUDLCIRG AND RFGOBDING INSTRUMENT.

APPLICATION FILED 11116.21. 1W9.

1,0 1 3,247, Patented J an. 2, 1912.

4 SHEBTS'SHBET 3 I H. G. WIEDER. 1 SOUND REPBODUOING-AND RBGGRDING INSTRUMENT.

" V V APPLICATION FILED Auchzl. 1909.

1,013,241 Patented Jan 2, 1912.

4 SHEETS--SHEET 4 f UNITED" STATES rhTENT OFFICE.

' 2 I i HENRY GEORGE \VIEDER, OF LONDON, ENGLAND.

SOUND REPBQDUCING AND RECORDING INSTRUMENT.

1,01 3,247. pecifi n of Letters Patent Patented J an. .2, 1912.

E Application filed August 21, 1909. Serial No. 513,963.

T all whom it may concern; grooves formed one on a pin extending from Be it known that I, HENRY Gannon the sound box, and the other on a pin carlVIEm-m, a subject. of the Emperor of Ausl'l(l by a bracket attached to said sound box, tria-llungary. of 17 Lanark Mansions. said lmife edges and their corre ponding Shepherds Bush, London. in the county of grooves; being oppositely turned with re- Middlesex, England, scientific mechanician. spect to each other, and so arranged that, have invented a new and useful Improve the movement of the record againstthe merit Relating to Sound Reproducing and needle tends fzo hold the her more firmly in Recording Instruments, of which the followits bearings. 65 19 in is a specification. The invention further consists in mount.-

; This invention relates to improvements in ing :1 diaphragm and needle carrying elosound reproducing and recording devices i cnt upon the end of the sound tuhe 'resuch as gramophones. phenographs and the silicntl in such a manner that it may move like. somewhat relatively to said end in a circum- One object of the invention is to obtain i'erential direction but In 1y not move out of ith a l t t. the i t n ifi ati its normal plrne. By tlnsn'icthod'of mountof sound which is usually produced by a iug the entire movement of the needle i long trumpet and at the same time to inthe direction which alfects U p mn is crease the ll'UllQW'l'lUSS of reproduction. trausn'iitted to the diaphragm instead 01375 29 Further objects of the invention are to some of the movement being absorbed in improve the swivel connection of the sound moving the diaphragm carrier out of its arm which carries the diaphragm. to proproper plane as occurs in apparatus 01 this vide improved support for the carrier of= character at present in use. 7

the diaphragm liYol and needle and i pro The invention further consists in an iiii- F vide ar improved resilient. mounting for the proved diaphragm for sound reproducing element which carries the diaphragm and and recording instruments consisting of a needle support. thin disk of wood, composition or the like The invcnlion consists in providing the Wiih a circular flange or ridge some distance instrument with a plurality oi short trum h Within the periphery, the portion of the pets branching from the sound pipe. said diaph agm ithin this flange or ridge betrumpets oeiug provided at or near their ng thickened. ends with soundinglmxes. which form walls The invention also consists in the imof an inclosiug cabinet. By this arrangeproved arrangement of sound reproducing xnent the'sounding boxes may be arranged instrument and in details of the same as 3 :3 to form a plurality of the sides of a cabinet hereinafter indicated.

which incloses the entire instrument includ- Figure l is a plan view showing a graino ing the trumpets and since the trumpets for. 'phone constructed according to the present a given size of instrun'ient are very much invention. Fig. 2 is a section on the line shorter than the truu'ipct usually employed A.-\ of Fig. 1 with sound pipe and dia- 9. 40 for such an instrument, the overall dimcnphragin carrying clement removed. Fig. 3

sions of the entire cabinet may be kept small is a section on the line 13-43 of Fig. 1,'show- Without any parts protruding from the ing the arrangement of the funnels and cabinet. sounding boxes. 4 1s an elevation of 'lhe invention further consists in pivocthe sound pipe having a continual taper. 10G

45 ally connecting the portion of the sound Fig. 5 is a partly sectional viewofthe meeh-.

pipe which carries the sound box to the rest anism shown in Fig. l, and illus'lrating of the sound pipe in such a manner that my improved swivel oint. Fig. 6 shows an the two portions of said sound pipe are enlarged View of my improved needle coaxial at, the joint. in their'uprmal working mounting. Fig. 7 is an elevation of my im- 50 position, and whereby the gradual taper of proved diaphragm carrying element with the sound pipe may be cmitinued to the part of the back cover removed. Fig. 8 is a sound box itself. sectional view of the parts shown in Fig. 7;

According to another part of the inven- Fig. 9 is a section ihroug h my improved tion the needle carrier and diaphragm arm diaphragm. 55 are mounted on a bar having two projecting In carrying this invn'iion intoilfeot aer knife edged arms. bearing in suitable cording to one construction I lead-the and her 5. Similar projections but; in different. positions are formed in the groove 6 of this member 5. These may conveniently take the form of screws 8, which pass through suitable slots in the members 3. These screws are preferably surrounded by a sleeve 9 of resilientmaterial such as rubber. In the grooves 4 and 6 are spring buffers 10 also of some resilient. material such as rubher. The projections 7, on the member 3 bear against the one set of ends of the buflens 10 or thelike, while the screws 3 on the other member 5 act as buttresses for. the other ends of the butters 10. The two members, 3 and 5, are clamped together face to face by a ring 11, or the like, so that they cannot move toward or away from one another although they may have some small rotary movement relatively to one another against the resistance of the resilient buffers 10. In consequence of this device when the needle is in use a certain amount of yield is afforded the needle carrying member 5 and this yielding action is exerted in a circumferential direction about an axis passing parallel with the diaphragm 12, although a movement of the needle carrying member 5, in the direction in vhich the needle tends to move while deflecting the diaphragm 12, is also provided. The back plate 5 is held to this member h by screws or the like passing through the rubber washer the holes in the member 5, through which such screws pass being made slightly larger than actually required. By this means relative circumferential movement of the diaphragm currying element 5 to the member 3 is allowed while a metal to metal contact is also obtained thereby preventing relative movement of these two members in-any other direction.

In constructing a diaphragm according to this invention a disk of wood 12 is provided some distance within its periphery ridge, which revents warping of the diewith a circuar concentric flange, 13, or phragm by atmospheric changes and the like. The portion. of the disk 12, withirrthe ridge or flange 13, is preferably made somewhat thicker than the rest of the diaphragm. It is found that. a wooden diaphragm of this character may be used for a long period without, warping and the sounds reproduced by it are of an exceedingly mellow tone. Instead of employing wood however for the diaphragm, other non-metallic materials or compositions such as-Gallalith (which consists of carbon milk and potato or the like) may be used.

It will be seen that. many modifications may be made in the method of carrying this invention into effect without in any way departing from the spirit of the same.

hat. I claim as my invention and desire to secure by Letters Patent, is:--

In a sound reproducing or recording apparatus, the combination of a casing; said casing having inner and outer walls spaced apart to provide sounding boxes; a needle vcarrier; a diaphragm; a sound pipe connected at one end with the needle carrier; a boxing disposed centrally of the casing and connected with the other end of said sound pipe; said boxing comprising a plurality of substantially rectangular walls; and a plurality of trumpets of equal length connected with said boxing; said trumpets extending through the inner walls of said sounding boxes and having their outer edges meet.- ing flush with the inner surfaces of the outer walls of said sounding boxes, substantially as described.

In witness whereof I have hereunto set. my hand in the presence of two witnesses. HENRY GEORGE WEEDER. \Vitnesses:

Arr-Ran T. Bm'rrox, E. L. H. ELLIo'rr. 

